PANOV, P.V. Database «Political space of the industrial cities of the Urals». Perm Federal Research Centre Journal, [S. l.], n. 3, p. 77–82, 2018. DOI: 10.7242/1998-2097/2018.3.8. Disponível em: https://journal.permsc.ru/index.php/pscj/article/view/PSCJ2018n3p8. Acesso em: 18 jul. 2026.